The MegaMOAG takes the design of the MonsterMOAG and adapts it for telescope systems with larger optical openings. It comes with the same camera-side adapter as the MonsterMOAG but it has a 4" opening on the scope side and comes with a 4 1/16" - 24 male adapter to connect to larger extension tubes found on the back of many larger telescopes. The body is larger and the pick-off prism is further from center. It has the same 1.25" body thickness as the MonsterMOAG. It comes with either a single guide port (MeMOAG-1) or two ports (MegaMOAG-2), as shown in the picture. As with the MonstermOAG, a black metal plate will cover the unused port for a MeMOAG-1. A second port assembly can be added at a later time with the MonsterMOAG Extra Port Assembly (MMOAG-PORT) .